serial: PL011: clear pending interrupts

[linux-flexiantxendom0.git] / fs / binfmt_elf_fdpic.c

diff --git a/fs/binfmt_elf_fdpic.c b/fs/binfmt_elf_fdpic.c
index e49d9c0..30745f4 100644 (file)
--- a/fs/binfmt_elf_fdpic.c
+++ b/fs/binfmt_elf_fdpic.c
@@ -245,8 +245,7 @@ static int load_elf_fdpic_binary(struct linux_binprm *bprm,
                         * mm->dumpable = 0 regardless of the interpreter's
                         * permissions.
                         */
-                       if (file_permission(interpreter, MAY_READ) < 0)
-                               bprm->interp_flags |= BINPRM_FLAGS_ENFORCE_NONDUMP;
+                       would_dump(bprm, interpreter);
 
                        retval = kernel_read(interpreter, 0, bprm->buf,
                                             BINPRM_BUF_SIZE);
@@ -990,10 +989,9 @@ static int elf_fdpic_map_file_constdisp_on_uclinux(
 
                /* clear any space allocated but not loaded */
                if (phdr->p_filesz < phdr->p_memsz) {
-                       ret = clear_user((void *) (seg->addr + phdr->p_filesz),
-                                        phdr->p_memsz - phdr->p_filesz);
-                       if (ret)
-                               return ret;
+                       if (clear_user((void *) (seg->addr + phdr->p_filesz),
+                                      phdr->p_memsz - phdr->p_filesz))
+                               return -EFAULT;
                }
 
                if (mm) {
@@ -1005,15 +1003,8 @@ static int elf_fdpic_map_file_constdisp_on_uclinux(
                                }
                        } else if (!mm->start_data) {
                                mm->start_data = seg->addr;
-#ifndef CONFIG_MMU
                                mm->end_data = seg->addr + phdr->p_memsz;
-#endif
                        }
-
-#ifdef CONFIG_MMU
-                       if (seg->addr + phdr->p_memsz > mm->end_data)
-                               mm->end_data = seg->addr + phdr->p_memsz;
-#endif
                }
 
                seg++;
@@ -1034,7 +1025,7 @@ static int elf_fdpic_map_file_by_direct_mmap(struct elf_fdpic_params *params,
        struct elf32_fdpic_loadseg *seg;
        struct elf32_phdr *phdr;
        unsigned long load_addr, delta_vaddr;
-       int loop, dvset, ret;
+       int loop, dvset;
 
        load_addr = params->load_addr;
        delta_vaddr = 0;
@@ -1134,9 +1125,8 @@ static int elf_fdpic_map_file_by_direct_mmap(struct elf_fdpic_params *params,
                 * PT_LOAD */
                if (prot & PROT_WRITE && disp > 0) {
                        kdebug("clear[%d] ad=%lx sz=%lx", loop, maddr, disp);
-                       ret = clear_user((void __user *) maddr, disp);
-                       if (ret)
-                               return ret;
+                       if (clear_user((void __user *) maddr, disp))
+                               return -EFAULT;
                        maddr += disp;
                }
 
@@ -1171,19 +1161,17 @@ static int elf_fdpic_map_file_by_direct_mmap(struct elf_fdpic_params *params,
                if (prot & PROT_WRITE && excess1 > 0) {
                        kdebug("clear[%d] ad=%lx sz=%lx",
                               loop, maddr + phdr->p_filesz, excess1);
-                       ret = clear_user((void __user *) maddr + phdr->p_filesz,
-                                        excess1);
-                       if (ret)
-                               return ret;
+                       if (clear_user((void __user *) maddr + phdr->p_filesz,
+                                      excess1))
+                               return -EFAULT;
                }
 
 #else
                if (excess > 0) {
                        kdebug("clear[%d] ad=%lx sz=%lx",
                               loop, maddr + phdr->p_filesz, excess);
-                       ret = clear_user((void *) maddr + phdr->p_filesz, excess);
-                       if (ret)
-                               return ret;
+                       if (clear_user((void *) maddr + phdr->p_filesz, excess))
+                               return -EFAULT;
                }
 #endif
 
@@ -1374,7 +1362,7 @@ static inline void fill_note(struct memelfnote *note, const char *name, int type
 
 /*
  * fill up all the fields in prstatus from the given task struct, except
- * registers which need to be filled up seperately.
+ * registers which need to be filled up separately.
  */
 static void fill_prstatus(struct elf_prstatus *prstatus,
                          struct task_struct *p, long signr)
@@ -1590,7 +1578,7 @@ static size_t elf_core_vma_data_size(unsigned long mm_flags)
        struct vm_area_struct *vma;
        size_t size = 0;
 
-       for (vma = current->mm->mmap; vma; vma->vm_next)
+       for (vma = current->mm->mmap; vma; vma = vma->vm_next)
                if (maydump(vma, mm_flags))
                        size += vma->vm_end - vma->vm_start;
        return size;
@@ -1626,7 +1614,6 @@ static int elf_fdpic_core_dump(struct coredump_params *cprm)
 #endif
        int thread_status_size = 0;
        elf_addr_t *auxv;
-       unsigned long mm_flags;
        struct elf_phdr *phdr4note = NULL;
        struct elf_shdr *shdr4extnum = NULL;
        Elf_Half e_phnum;
@@ -1769,14 +1756,7 @@ static int elf_fdpic_core_dump(struct coredump_params *cprm)
        /* Page-align dumped data */
        dataoff = offset = roundup(offset, ELF_EXEC_PAGESIZE);
 
-       /*
-        * We must use the same mm->flags while dumping core to avoid
-        * inconsistency between the program headers and bodies, otherwise an
-        * unusable core file can be generated.
-        */
-       mm_flags = current->mm->flags;
-
-       offset += elf_core_vma_data_size(mm_flags);
+       offset += elf_core_vma_data_size(cprm->mm_flags);
        offset += elf_core_extra_data_size();
        e_shoff = offset;
 
@@ -1809,7 +1789,7 @@ static int elf_fdpic_core_dump(struct coredump_params *cprm)
                phdr.p_offset = offset;
                phdr.p_vaddr = vma->vm_start;
                phdr.p_paddr = 0;
-               phdr.p_filesz = maydump(vma, mm_flags) ? sz : 0;
+               phdr.p_filesz = maydump(vma, cprm->mm_flags) ? sz : 0;
                phdr.p_memsz = sz;
                offset += phdr.p_filesz;
                phdr.p_flags = vma->vm_flags & VM_READ ? PF_R : 0;
@@ -1847,7 +1827,7 @@ static int elf_fdpic_core_dump(struct coredump_params *cprm)
                goto end_coredump;
 
        if (elf_fdpic_dump_segments(cprm->file, &size, &cprm->limit,
-                                   mm_flags) < 0)
+                                   cprm->mm_flags) < 0)
                goto end_coredump;
 
        if (!elf_core_write_extra_data(cprm->file, &size, cprm->limit))
@@ -1883,6 +1863,7 @@ cleanup:
        kfree(psinfo);
        kfree(notes);
        kfree(fpu);
+       kfree(shdr4extnum);
 #ifdef ELF_CORE_COPY_XFPREGS
        kfree(xfpu);
 #endif