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From: Nicholas Piggin <npiggin@gmail.com>
To: qemu-devel@nongnu.org
Cc: Nicholas Piggin <npiggin@gmail.com>,
	qemu-ppc@nongnu.org, BALATON Zoltan <balaton@eik.bme.hu>
Subject: [PULL 08/12] ppc/amigaone: Check blk_pwrite return value
Date: Fri, 21 Mar 2025 16:24:12 +1000	[thread overview]
Message-ID: <20250321062421.116129-9-npiggin@gmail.com> (raw)
In-Reply-To: <20250321062421.116129-1-npiggin@gmail.com>

From: BALATON Zoltan <balaton@eik.bme.hu>

Coverity reported that return value of blk_pwrite() maybe should not
be ignored. We can't do much if this happens other than report an
error but let's do that to silence this report.

Resolves: Coverity CID 1593725
Signed-off-by: BALATON Zoltan <balaton@eik.bme.hu>
Reviewed-by: Nicholas Piggin <npiggin@gmail.com>
Message-ID: <20250314200140.2DBE74E6069@zero.eik.bme.hu>
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
---
 hw/ppc/amigaone.c | 14 ++++++++------
 1 file changed, 8 insertions(+), 6 deletions(-)

diff --git a/hw/ppc/amigaone.c b/hw/ppc/amigaone.c
index 483512125f..5d787c3059 100644
--- a/hw/ppc/amigaone.c
+++ b/hw/ppc/amigaone.c
@@ -108,8 +108,8 @@ static void nvram_write(void *opaque, hwaddr addr, uint64_t val,
     uint8_t *p = memory_region_get_ram_ptr(&s->mr);
 
     p[addr] = val;
-    if (s->blk) {
-        blk_pwrite(s->blk, addr, 1, &val, 0);
+    if (s->blk && blk_pwrite(s->blk, addr, 1, &val, 0) < 0) {
+        error_report("%s: could not write %s", __func__, blk_name(s->blk));
     }
 }
 
@@ -151,15 +151,17 @@ static void nvram_realize(DeviceState *dev, Error **errp)
         *c = cpu_to_be32(CRC32_DEFAULT_ENV);
         /* Also copies terminating \0 as env is terminated by \0\0 */
         memcpy(p + 4, default_env, sizeof(default_env));
-        if (s->blk) {
-            blk_pwrite(s->blk, 0, sizeof(crc) + sizeof(default_env), p, 0);
+        if (s->blk &&
+            blk_pwrite(s->blk, 0, sizeof(crc) + sizeof(default_env), p, 0) < 0
+           ) {
+            error_report("%s: could not write %s", __func__, blk_name(s->blk));
         }
         return;
     }
     if (*c == 0) {
         *c = cpu_to_be32(crc32(0, p + 4, NVRAM_SIZE - 4));
-        if (s->blk) {
-            blk_pwrite(s->blk, 0, 4, p, 0);
+        if (s->blk && blk_pwrite(s->blk, 0, 4, p, 0) < 0) {
+            error_report("%s: could not write %s", __func__, blk_name(s->blk));
         }
     }
     if (be32_to_cpu(*c) != crc) {
-- 
2.47.1



  parent reply	other threads:[~2025-03-21  6:28 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-03-21  6:24 [PULL 00/12] ppc-for-10.0-2 queue Nicholas Piggin
2025-03-21  6:24 ` [PULL 01/12] ppc/spapr: Fix RTAS stopped state Nicholas Piggin
2025-03-21  6:24 ` [PULL 02/12] ppc/xive: Fix typo in crowd block level calculation Nicholas Piggin
2025-03-21  6:24 ` [PULL 03/12] pnv/xive: Fix possible undefined shift error in group size calculation Nicholas Piggin
2025-03-21  6:24 ` [PULL 04/12] ppc/xive2: Fix logical / bitwise comparison typo Nicholas Piggin
2025-03-21  6:24 ` [PULL 05/12] ppc/spapr: Fix possible pa_features memory overflow Nicholas Piggin
2025-03-21  6:24 ` [PULL 06/12] ppc/pnv: Move the PNOR LPC address into struct PnvPnor Nicholas Piggin
2025-03-21  6:24 ` [PULL 07/12] ppc/pnv: Fix system symbols in HOMER structure definitions Nicholas Piggin
2025-03-21  6:24 ` Nicholas Piggin [this message]
2025-03-21  6:24 ` [PULL 09/12] ppc/amigaone: Constify default_env Nicholas Piggin
2025-03-21  6:24 ` [PULL 10/12] ppc/spapr: fix default cpu for pre-9.0 machines Nicholas Piggin
2025-03-21  6:24 ` [PULL 11/12] target/ppc: Fix facility interrupt checks for VSX Nicholas Piggin
2025-03-21  6:24 ` [PULL 12/12] target/ppc: Fix e200 duplicate SPRs Nicholas Piggin
2025-03-23 22:29 ` [PULL 00/12] ppc-for-10.0-2 queue Stefan Hajnoczi

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