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| author | Devendra Naga <devendra.aaru@gmail.com> | 2012-10-22 17:22:20 -0400 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2012-10-23 20:35:54 -0700 |
| commit | 5c092f41fdb636859a20f57372f8dd25633adbef (patch) | |
| tree | 844d5be153769c203d4c4fd6e87bcb31bb6c66f2 /drivers/staging/ced1401 | |
| parent | 5ee60a7038c79d2276ae315ac6d6764391ed386f (diff) | |
| download | linux-5c092f41fdb636859a20f57372f8dd25633adbef.tar.bz2 | |
staging: ced1401: fix a frame size warning
gcc/sparse complain about the following:
drivers/staging/ced1401/ced_ioc.c:931:1: warning: the frame size of 4144 bytes is larger than 2048 bytes [-Wframe-larger-than=]
Fix it by dynamically allocating it.
Signed-off-by: Devendra Naga <devendra.aaru@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/staging/ced1401')
| -rw-r--r-- | drivers/staging/ced1401/ced_ioc.c | 28 |
1 files changed, 17 insertions, 11 deletions
diff --git a/drivers/staging/ced1401/ced_ioc.c b/drivers/staging/ced1401/ced_ioc.c index 5813aee6b348..0adba75be8b7 100644 --- a/drivers/staging/ced1401/ced_ioc.c +++ b/drivers/staging/ced1401/ced_ioc.c @@ -913,18 +913,24 @@ int GetTransfer(DEVICE_EXTENSION * pdx, TGET_TX_BLOCK __user * pTX) iReturn = U14ERR_BADAREA; else { // Return the best information we have - we don't have physical addresses - TGET_TX_BLOCK tx; - memset(&tx, 0, sizeof(tx)); // clean out local work structure - tx.size = pdx->rTransDef[dwIdent].dwLength; - tx.linear = (long long)((long)pdx->rTransDef[dwIdent].lpvBuff); - tx.avail = GET_TX_MAXENTRIES; // how many blocks we could return - tx.used = 1; // number we actually return - tx.entries[0].physical = - (long long)(tx.linear + pdx->StagedOffset); - tx.entries[0].size = tx.size; - - if (copy_to_user(pTX, &tx, sizeof(tx))) + TGET_TX_BLOCK *tx; + + tx = kzalloc(sizeof(*tx), GFP_KERNEL); + if (!tx) { + mutex_unlock(&pdx->io_mutex); + return -ENOMEM; + } + tx->size = pdx->rTransDef[dwIdent].dwLength; + tx->linear = (long long)((long)pdx->rTransDef[dwIdent].lpvBuff); + tx->avail = GET_TX_MAXENTRIES; // how many blocks we could return + tx->used = 1; // number we actually return + tx->entries[0].physical = + (long long)(tx->linear + pdx->StagedOffset); + tx->entries[0].size = tx->size; + + if (copy_to_user(pTX, tx, sizeof(*tx))) iReturn = -EFAULT; + kfree(tx); } mutex_unlock(&pdx->io_mutex); return iReturn; |