From: Peter Mamonov <pmamonov@gmail.com>
To: barebox@lists.infradead.org
Cc: Peter Mamonov <pmamonov@gmail.com>
Subject: [PATCH v3 02/12] fs: fix memory access via /dev/mem for MIPS64
Date: Tue, 22 May 2018 18:33:32 +0300 [thread overview]
Message-ID: <20180522153342.24933-3-pmamonov@gmail.com> (raw)
In-Reply-To: <20180522153342.24933-1-pmamonov@gmail.com>
lseek checks for non-negative in-memory offsets (addresses), failing otherwise.
However negative address 0xffffffffXXXXXXXX is a valid MIPS64 virtual address.
Signed-off-by: Peter Mamonov <pmamonov@gmail.com>
---
fs/fs.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/fs/fs.c b/fs/fs.c
index b66cc9b17..4322d307d 100644
--- a/fs/fs.c
+++ b/fs/fs.c
@@ -962,7 +962,7 @@ loff_t lseek(int fildes, loff_t offset, int whence)
case SEEK_SET:
if (f->size != FILE_SIZE_STREAM && offset > f->size)
goto out;
- if (offset < 0)
+ if (IS_ERR(offset))
goto out;
pos = offset;
break;
@@ -981,7 +981,7 @@ loff_t lseek(int fildes, loff_t offset, int whence)
}
pos = fsdrv->lseek(&f->fsdev->dev, f, pos);
- if (pos < 0) {
+ if (IS_ERR(pos)) {
errno = -pos;
return -1;
}
--
2.17.0
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next prev parent reply other threads:[~2018-05-22 15:34 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-05-22 15:33 [PATCH v3 00/12] various fixes " Peter Mamonov
2018-05-22 15:33 ` [PATCH v3 01/12] resource: fix iomem_resource.end for 64 bit systems Peter Mamonov
2018-05-22 15:33 ` Peter Mamonov [this message]
2018-05-24 10:47 ` [PATCH v3 02/12] fs: fix memory access via /dev/mem for MIPS64 Sascha Hauer
2018-05-24 14:01 ` [PATCH v4] " Peter Mamonov
2018-06-13 8:31 ` Sascha Hauer
2018-06-13 16:17 ` [RESEND " Peter Mamonov
2018-06-14 5:36 ` Sascha Hauer
2018-05-22 15:33 ` [PATCH v3 03/12] mtd: cfi-flash: fix write_buff() for 64 bit systems Peter Mamonov
2018-05-22 15:33 ` [PATCH v3 04/12] i2c-mux-pca954x: fix out-of-bounds write " Peter Mamonov
2018-05-22 15:33 ` [PATCH v3 05/12] MIPS: import 64-bit address conversion macros Peter Mamonov
2018-05-22 15:33 ` [PATCH v3 06/12] include/common.h: move IOMEM declaration for MIPS to arch/mips/include/asm/io.h Peter Mamonov
2018-05-22 15:33 ` [PATCH v3 07/12] MIPS: add proper IOMEM() declaration for MIPS64 Peter Mamonov
2018-05-22 15:33 ` [PATCH v3 08/12] MIPS: fix copy_to_link_location for 64 bit mode Peter Mamonov
2018-05-22 15:33 ` [PATCH v3 09/12] MIPS: use CKSEG1 instead of KSEG1 Peter Mamonov
2018-05-22 15:33 ` [PATCH v3 10/12] MIPS: add PHYS_ADDR_T_64BIT option Peter Mamonov
2018-05-22 15:33 ` [PATCH v3 11/12] MIPS: 64BIT selects PHYS_ADDR_T_64BIT Peter Mamonov
2018-05-22 15:33 ` [PATCH v3 12/12] MIPS: don't use optimized string functions for MIPS64 Peter Mamonov
2018-05-23 8:11 ` [PATCH v3 00/12] various fixes " Sascha Hauer
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